Liquid-fuel burner.



H. FORESTIER.

LIQUlD FUEL BURNER.

APPucATwN man Nov. 27, lem.

1 ,285,099., Patented Nov. 19, 1918.

l1/mandrel E ,Fre .s er 5513 'A/ @Hovrwg yso Yso

HERBERT EonEsrEia, or CLEVELAND, oHIo, Assrcrnon or ONE-HALE froALEXANDER.

, lVL SKIBINSKY.

LIQUID-FUEL BURNER.

To allwhomz't innig/concern: l..

Bek it-known thatI, HERBERT FoREsTER, ay subject of Great Britain,yresiding at` Cleve- 4 land, yin the county of Cuyahoga and State;l

to the burner by gravity so as to produce al blue flame'without the needof air pressure.

Another object of the invention is toprovide a burner, ofsaidicharacterof simple and inexpensive construction, which is easy to clean withoutdetaching it from the furnace or other places `where. installed.

In order that the invention may berclearlyy understood, the lsame willbe hereinaftery fully described as illustrated in the accompanyingdrawings, showing a preferred embodiment thereof, and itsv novelfeatures will be distinctly pointed out in the appended claims.

Figure 1 is a longitudinal section of a burner constructedvin accordancewith my invention,

F ig.2 yisa frontl end view i of the same,

Fig. 3 is a sectional view taken on line 33lof Fig. 1, and" Y Fig. 4 isa plan view of the elongated semi-cylindrical chamber.

Referring to the drawings, 1 represents an elongated semicylindricalcasing having its flat side 2 forming the top.y Said top is preferablyconstructed of pottery and is perforated by two rows of suitabletransverse slots 3, separated by a wall 4. The open ends of said casingare closed by a pair of plates 5 and 6, which are held in place bytie-bolts 7 passing longitudinally through the casing. The front endplate 6 is provided with an opening 8, in which is fixed a tubular neck9 for admitting air `and gas to said casing. Above the casing 1 anddirectly over the wall 4: of the top thereof, is arranged an elongatedcylindrical gas generating chamberlO, which has a closed rear end l1 anda threaded open end 12. This gas generating chamber passes through andis supported in openings in the plates 5 and specmeauon of LettersPatent. i

n Patented ov.

its lower side is provided with a recess 13 fork receiving the upwardlycurved end 14 of a tube l5, Vwhichfis constructed ofy comparativelythink material for becoming yquickly heated. Said end ofthe tube is openand extends to the top of the gas generating chamber yl0. The' tube'lextends along the underside of said gas generating chamber, and -itsforwardv end 16 passes through an openmgin the front plate 6. Saidforward Thenozzle 17 isprovided with a flared or conicaloutlet 18.y Aremovable cap-screw 19 is .threaded into the forward end of the -tube 15forclosing the same, and also to pron y 19.1918. .v f

' Application led November 27,1917.' Seria1No;204,l41. i f i- Y 6, andnear its Arear end'beyond the plate 5, l f

- end of the tube 15 curves downwardly and is 'i `provided with arearwardly extending nozzle 17 directly opposite the ltubular neck 9.

to the front end plate 6 by bolts-22. The

cap 2Ov is provided with a central aperture 23, andxis threaded inalinement therewith at 24. for the attachment of a feed pipe 25 vleading from an elevated supply reservoir of kerosene or other similarliquid fuel.- A shut-off valve 26 is arranged in the feed pipe forcontrolling they flow of the liouidffuelto the'casing 10. `For obtaininga steady `and even llow or distribution of the liquid fuel as it entersand passes throughv the casing 10, a core of suitable absorbent materialsuch as asbestos is arranged therein as indicated by 27.

In operation, one or more burners are arranged in a heating furnace,under a boiler, or other similar place in the usual manner, and the feedpipe connected to a supply reservoir of liquid fuel such as kerosene orother of the heavier oils. The supply reservoir is placed at a suitabledistance above the burners, so that the liquid fuel will flow thereto bygravity. As the fuel enters the gas generating chamber 10, the core ofabsorbent material 27 arranged therein becomes saturated for its entirelength. In order to light the burner, a torch or other heat giving meansis applied for heating the gas generating chamber 10 sufficiently totransform the liquid fuel held by the core of asbestos into gas. The gasthus generated passes through the tube 15 and escapes at the nozzle 17with great force. As the gas leaves the nozzle, it spreads outwardly inall directions due to the conical outlet' i8,

and becomes mixed with air before entering the tubular neck 9 andpassing into the casing l. The flow of the mixture, on account of theconical outlet of the nozzle, strikes the Wall of the neck 9 asindicated by the dotted lines, `thereby producing compression actionsimilar to an injector. Upon escaping` throughithe slots 3 in the top ofthe casing,`

the mixture becomes ignited by the torch. After being lighted, the'ainekeeps. the gas generating chamber heated, and the burner continues tooperate. The flame also heats the outer Wall ofthe tube 15 and therebycauses the gas passing therethrough to becoine super-heated forobtaining greater expansion of the gas, and consequently higher velocityof the flouY thereof. This produces perfect combustion and a'blue'fianie Without the need of air pressure,

A burner constructed as illustrated and described, Will operateefhciently for using kerosene or other similar oils as fuel Without theneed of air pressure, thereby saving the expense of air pressure orlforced draft; completey combustion-is obtained, thus it is economicalin the use of fuel; and on account of its .simple construction, it isinexpensiveY to manufacture and easy to keep insane-e and above the topof said casing, and the tube having an outlet opposite said opening ofthe casing, substantially as'described.`

2. in a liquid fuel burner, the combination of an elongated casing, thetop of the casing p being perforated, the casing being provided with anopening kin its end, a tubular neck extending from the opening of thecasing, a gas generating chamber ar anged longitudinail;7 above the topof the casing, means for supplying liquid fuel to one end of thekchamber, a. tube-connected at an acute-anglev to the other end of theclianibeiand entend.-l` ing parallel to/and touchingsaid chamber,

the free end of the tube being bent down- Wardljv, a nozzle projectingfrom the tube Y opposite said; tubular neck, and a removable i cap-screwclosing the freel end'of the tube, substainiall7 as described.

3. In a liquidA fuel burner, the combination of an elongatedsemi-circular casing, the flat side of the casing,` forming a top, thetop.-V

of the casing being perforated, the casing being provided with anopening in its end, a tubular neck extending from: the opening of thecasing, a gas generating chamber` arranged longitudinally` above thetopofthecasing, a core of absorbent material arranged within said chaniber,a tube leading `from the upper part of said chamber, the tubeextendingalong the underside of said chamber and above the top of the casing, thefree end of the tube being bent downwardly, a nozzle projecting fronithe tube opposite said tubular neck, the nozzle havinga coni,- ca-loutlet for directing gas against the inner lwalls of said tubular neck,and a removable cap-screiv closing the free end of said tube,substantialljyY as described.

ln testimony whereof I aiiii; iny signature.

HERBERT FORESTER.

Genies ci this 'gieten-t for are cents each, by addressing theGoinnissloner ef @atenta Washington, E.

